Realization of electronically tunable ladder filters using multi-output current controlled conveyors

Author

Jiraseree-Amornkun, Amorn ; Fujii, Nobuo ; Surakampontorn, Wanlop

Author_Institution

Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol., Ladkrabang, Thailand

Volume

1

fYear

2003

fDate

25-28 May 2003

Abstract

A systematic realization of a continuous-time current-mode ladder filter using a multi-output second generation current controlled conveyor (MCCCII) has been presented. The proposed technique is based on a leapfrog simulation of an RLC ladder filter using only MCCCIIs and capacitors that lead to a simple structure, easy to design and suitable for IC fabrication. A fifth-order Butterworth low-pass filter and a sixth-order Chebyshev bandpass filter, which retain a minimum requirement of passive elements, and have the advantage of being electronically tunable are introduced. The feasibility of the realization strategy is confirmed through HSPICE circuit simulations.

Keywords

Butterworth filters; Chebyshev filters; RLC circuits; band-pass filters; circuit simulation; circuit tuning; continuous time filters; current conveyors; ladder filters; low-pass filters; network synthesis; Butterworth low-pass filter; Chebyshev bandpass filter; MCCCII; RLC ladder filter leapfrog simulation; capacitors; continuous-time filter; electronically tunable filter; electronically tunable ladder filter; multi-output current controlled conveyor; passive element requirement minimization; second generation current controlled conveyor; Active filters; Band pass filters; Circuit simulation; Communication system control; Frequency; Low pass filters; Passive filters; RLC circuits; Tunable circuits and devices; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205620

Filename

1205620